Datacom FVS-1044, Руководство пользователя, Страница: 65 / 90

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© 2010 Datacom Systems Inc
FLOWcontrol™
VERSA
™
stream
Media Preference and Port Speed Setting must be set correctly for each port
you are using. Port names may be changed by clicking on the port in the Port
Names column. Port Type can only be modified for the FVS-1080. The user
must make the appropriate selections and then select the Apply button after
making any changes to ensure the changes are received by the device.
The Readback button allows the user to view the current settings of the device.
The Apply button allows the user to send configuration changes to the device.
Filtered SINGLEstream™ naming convention for Network and Monitor ports is:
ports 1A, 1B, 2A, and 2B for Network Tap ports (inputs) and ports 1 through 4
for monitor ports (outputs). Taps are in-line connections between routers,
firewall, ethernet switches or servers/workstations. Monitor ports are connected
to protocol analysis tools, probes or security devices.
Filtered VERSAstream™ naming convention for Network and Monitor ports is:
Network Input ports are numbered 1 through 4, and Monitor Ports are numbered
1 through 4 (sometimes displayed as ports 5 through 8, when both Network &
Monitor ports are described in one place). Network Input ports receive data from
the management ports of network devices (like a SPAN port), whereas Monitor
ports are connected to protocol analysis tools, probes or security devices.
Be sure that the correct speed setting is used consistently across Network Taps.
Both the A and B ports of any Network Tap must have the same speed settings!
Also be sure to only send an appropriate amount of traffic to any connected
monitoring device. A 100BaseT network analyzer cannot handle all (unfiltered)
traffic from both sides of a full-duplex 1000BaseT Network Tap. If you direct
more traffic to a device than its link can handle, your monitored traffic will suffer
from randomized packet loss.
Port Configuration tab configurable items and their allowable values are:
Port Names can be a maximum of 16 characters in length.
Media Preferences can be either FIBER or COPPER. Selection of a Media
Preference of FIBER limits the Port Speed to one of either Auto-Negotiate or
1G Full-Duplex.
Port Speed Setting can be one of the following:
o
Auto-Negotiate
o
1G Full-Duplex
o
100M Full-Duplex
o
100M Half-Duplex
o
10M Full-Duplex
o
10M Half-Duplex
NOTE: Setting the Port Speed to Half-Duplex does NOT provide full
functionality. No exponential backoff is performed. The setting is
provided to allow for link in the half-duplex environment, assuming
that the connection is a dedicated connection to an older piece of
equipment.
Port Type is used for information only. It has no implicit value except to
provide a grouping on the summary screen such that Network and Monitor
ports can be associated based upon the connected equipment. As an